.c-btn-group {
  display: inline-block;
  vertical-align: middle;
  white-space: nowrap;
  font-size: 0; }
  .c-btn-group > .o-btn {
    margin-left: -1px;
    border-radius: 0; }
    .c-btn-group > .o-btn:hover, .c-btn-group > .o-btn:focus {
      position: relative; }
  .c-btn-group > .o-btn:first-child {
    margin-left: 0;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px; }
  .c-btn-group > .o-btn:last-child {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px; }
